why are veins provided with valves
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The main function of the valves inveins is to prevent back flow of blood. Blood in the arteries, after being pumped by the heart, are under much higher pressure than blood in veins so there is no need for valves in arteries to prevent back flow
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plzz mark as brainlest
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Answer:
the valves are provided in vein to prevent back flow of blood
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